MCQOPTIONS
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MCQOPTIONS
This section includes 40 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Equations of state provide the linkage between ___________ and ____________ |
| A. | Conservative, non-conservative equation |
| B. | Eulerian, Lagrangian equations |
| C. | Energy equation, mass and momentum equations |
| D. | Differential, Integral equations |
| Answer» D. Differential, Integral equations | |
| 2. |
Energy conservation equation is necessary to solve this property of fluid flow. |
| A. | Pressure |
| B. | Temperature |
| C. | Density |
| D. | Velocity |
| Answer» C. Density | |
| 3. |
Which is/are the conservation laws that are enough to solve a complete fluid problem? |
| A. | Energy and momentum conservation |
| B. | Mass and energy conservation |
| C. | Mass and momentum conservation |
| D. | Mass equation |
| Answer» D. Mass equation | |
| 4. |
Let,ρ → DensityT → Temperaturei → Specific internal energyHow can we represent i of a perfect gas in terms of ρ and/or T? |
| A. | i=T |
| B. | i ∝ (1/T) |
| C. | i=(1/T) |
| D. | i ∝ T |
| Answer» E. | |
| 5. |
Let,ρ → Densityp → PressureT → TemperatureHow can we represent p of a perfect gas in terms of ρ and/or T? |
| A. | p=ρ RT |
| B. | p=RT |
| C. | p=ρ T |
| D. | p=ρ R |
| Answer» B. p=RT | |
| 6. |
We can describe the state of a substance in thermodynamic equilibrium using two state variables. What are these two variables? |
| A. | Density and temperature |
| B. | Density and pressure |
| C. | Pressure and Temperature |
| D. | Velocity and Temperature |
| Answer» B. Density and pressure | |
| 7. |
Fluid velocity is very high. Will thermodynamic equilibrium be applicable to fluid flows? |
| A. | Yes, the external conditions help them stay in thermodynamic equilibrium |
| B. | No, their flow properties change abruptly |
| C. | No, they are influenced by external conditions |
| D. | Yes, the fluid can thermodynamically adjust itself quickly to be in thermodynamic equilibrium |
| Answer» E. | |
| 8. |
Relationship between thermodynamic variables of a flow field can be obtained through ___________ |
| A. | Momentum conservation |
| B. | Thermodynamic equilibrium |
| C. | Energy equations |
| D. | Zeroth law of thermodynamics |
| Answer» C. Energy equations | |
| 9. |
Among the unknowns of a flow field, some of the properties are given below. Which set contains only thermodynamic properties? |
| A. | Density, pressure, specific internal energy, temperature |
| B. | Density, velocity, specific internal energy, temperature |
| C. | Velocity, pressure, specific internal energy, temperature |
| D. | Density, pressure, specific internal energy, Velocity |
| Answer» B. Density, velocity, specific internal energy, temperature | |
| 10. |
How many equations are related to solving a flow field? |
| A. | 2 |
| B. | 3 |
| C. | 5 |
| D. | 4 |
| Answer» D. 4 | |
| 11. |
The magnitude of Z at a particular pressure and temperature indicates the extent of deviation of the gas from the ideal gas behaviour. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 12. |
For an ideal gas, Z has the value |
| A. | 0 |
| B. | 2 |
| C. | 1 |
| D. | infinity |
| Answer» D. infinity | |
| 13. |
Compressibility factor Z is given by |
| A. | RT/pv |
| B. | pv/RT |
| C. | (RT/pv)2 |
| D. | (pv/RT)2 |
| Answer» C. (RT/pv)2 | |
| 14. |
For the ideal gas equation, what assumptions are made? |
| A. | there is little or no attraction between the molecules of the gas |
| B. | the volume occupied by the molecules is negligibly small compared to the volume of the gas |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 15. |
What is the unit of ‘a’ in RK equation? |
| A. | Liter/mole |
| B. | Atm(liter/mole) |
| C. | Atm(liter/mole)K0.5 |
| D. | Atm(liter/mol |
| E. | Atm(liter/mole)K0.5d) Atm(liter/mole)KView answer |
| Answer» D. Atm(liter/mol | |
| 16. |
What is the unit of λ in the SRK equation? |
| A. | Liter/mole |
| B. | Mole/Liter |
| C. | Atm(liter/mole) |
| D. | It is dimensionlessView answer |
| E. | It is dimensionlessView answer |
| Answer» E. It is dimensionlessView answer | |
| 17. |
What is the unit of ‘b’ in Peng Robinson equation? |
| A. | Liter/mole |
| B. | Liter2/mole2 |
| C. | Mole/Liter |
| D. | Mole2/Liter2View answer |
| Answer» B. Liter2/mole2 | |
| 18. |
A container is filled with a gas at 10 atm with molar volume 1 liter/mole, if B = – 0.053 liter/mole, C = 0.0026 liter2/mole2, what is the temperature of gas? (Use virial equation, neglect higher terms) |
| A. | 128.2 K |
| B. | 156.9 K |
| C. | 198.5 K |
| D. | 243.6 KView answer |
| Answer» B. 156.9 K | |
| 19. |
What is the pressure of CO2 at 0oC, molar volume = 4 liter/mole, if B = – 0.053 liter/mole, C = 0.0026 liter2/mole2? (Use virial equation, neglect higher terms) |
| A. | 2.4 atm |
| B. | 4.1 atm |
| C. | 5.5 atm |
| D. | 6.9 atmView answer |
| Answer» D. 6.9 atmView answer | |
| 20. |
A container has H2 at 27oC and molar volume 1 liter/mole, if a = 9.24 atm(liter/mole), b = 0.0907 liter/mole, what is the temperature of H2? (Use vander waal equation) |
| A. | 7.5 atm |
| B. | 12.4 atm |
| C. | 15.6 atm |
| D. | 17.8 atmView answer |
| E. | , b = 0.0907 liter/mole, what is the temperature of H2? (Use vander waal equation)a) 7.5 atmb) 12.4 atmc) 15.6 atmd) 17.8 atmView answer |
| Answer» E. , b = 0.0907 liter/mole, what is the temperature of H2? (Use vander waal equation)a) 7.5 atmb) 12.4 atmc) 15.6 atmd) 17.8 atmView answer | |
| 21. |
A container has O2 at 5 atm and molar volume 2 liter/mole, if a = 9.24 atm(liter/mole), b = 0.0907 liter/mole, what is the temperature of O2? (Use vander waal equation) |
| A. | 140 K |
| B. | 150 K |
| C. | 170 K |
| D. | 190 KView answer |
| E. | , b = 0.0907 liter/mole, what is the temperature of O2? (Use vander waal equation)a) 140 Kb) 150 Kc) 170 Kd) 190 KView answer |
| Answer» D. 190 KView answer | |
| 22. |
WHAT_IS_THE_UNIT_OF_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚Àւ§A‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•_IN_RK_EQUATION??$# |
| A. | Liter/mole |
| B. | Atm(liter/mole) |
| C. | Atm(liter/mole)K<sup>0.5</sup> |
| D. | Atm(liter/mole)K |
| Answer» D. Atm(liter/mole)K | |
| 23. |
FOR_AN_IDEAL_GAS,_Z_HAS_THE_VALUE?$ |
| A. | 0 |
| B. | 2 |
| C. | 1 |
| D. | infinity |
| Answer» D. infinity | |
| 24. |
The magnitude of Z at a particular pressure and temperature indicates the extent of deviation of the gas from the ideal gas behaviour.$ |
| A. | true |
| B. | false |
| Answer» B. false | |
| 25. |
What is the unit of λ in the SRK equation?# |
| A. | Liter/mole |
| B. | Mole/Liter |
| C. | Atm(liter/mole) |
| D. | It is dimensionless |
| Answer» E. | |
| 26. |
Compressibility factor Z is given b? |
| A. | RT/pv |
| B. | pv/RT |
| C. | (RT/pv)<sup>2</sup> |
| D. | (pv/RT)<sup>2</sup> |
| Answer» C. (RT/pv)<sup>2</sup> | |
| 27. |
What is the unit of ‘b’ in Peng Robinson equation?$ |
| A. | Liter/mole |
| B. | Liter<sup>2</sup>/mole<sup>2</sup> |
| C. | Mole/Liter |
| D. | Mole<sup>2</sup>/Liter<sup>2</sup> |
| Answer» B. Liter<sup>2</sup>/mole<sup>2</sup> | |
| 28. |
The following also gave two-constant equations of state. |
| A. | Berthelot |
| B. | Dieterici |
| C. | Redlich-Kwong |
| D. | all of the mentioned |
| Answer» E. | |
| 29. |
A container is filled with a gas at 10 atm with molar volume 1 liter/mole, if B = – 0.053 liter/mole, C = 0.0026 liter2/mole2, what is the temperature of gas? (Use virial equation, neglect higher terms)$ |
| A. | 128.2 K |
| B. | 156.9 K |
| C. | 198.5 K |
| D. | 243.6 K |
| Answer» B. 156.9 K | |
| 30. |
Real gases conform more closely with the van der Waals equation of state than the ideal gas equation of state. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 31. |
What is the pressure of CO2 at 0oC, molar volume = 4 liter/mole, if B = – 0.053 liter/mole, C = 0.0026 liter2/mole2? (Use virial equation, neglect higher terms)$ |
| A. | 2.4 atm |
| B. | 4.1 atm |
| C. | 5.5 atm |
| D. | 6.9 atm |
| Answer» D. 6.9 atm | |
| 32. |
Which of the following statement is true about the correction terms? |
| A. | the coefficient a was introduced to account for the existence of mutual attraction between the molecules |
| B. | the term a/(v<sup>2</sup>) is called the force of cohesion |
| C. | the coefficient b was introduced to account for the volumes of the molecules and is known as co-volume |
| D. | all of the mentioned |
| Answer» E. | |
| 33. |
A container has H2 at 27oC and molar volume 1 liter/mole, if a = 9.24 atm(liter/mole), b = 0.0907 liter/mole, what is the temperature of H2? (Use vander waal equation) |
| A. | 7.5 atm |
| B. | 12.4 atm |
| C. | 15.6 atm |
| D. | 17.8 atm |
| Answer» E. | |
| 34. |
The corrected gas equation is given by |
| A. | (p+a/(v<sup>2</sup>))(v+b)=RT |
| B. | (p-a/(v<sup>2</sup>))(v-b)=RT |
| C. | (p-a/(v<sup>2</sup>))(v+b)=RT |
| D. | (p+a/(v<sup>2</sup>))(v-b)=RT |
| Answer» E. | |
| 35. |
A container has O2 at 5 atm and molar volume 2 liter/mole, if a = 9.24 atm(liter/mole), b = 0.0907 liter/mole, what is the temperature of O2? (Use vander waal equation) |
| A. | 140 K |
| B. | 150 K |
| C. | 170 K |
| D. | 190 K |
| Answer» D. 190 K | |
| 36. |
The real gases deviate from the ideal gas equation when the pressure increases. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 37. |
If the vander waal equation has only one root, what is the relation between a and b? |
| A. | 729a = pb<sup>2</sup> |
| B. | 243a = pb<sup>2</sup> |
| C. | 81a = pb<sup>2</sup> |
| D. | 9a = pb<sup>2</sup> |
| Answer» B. 243a = pb<sup>2</sup> | |
| 38. |
When does a real gas obey the ideal gas equation closely? |
| A. | at high pressure and low temperature |
| B. | at low pressure and high temperature |
| C. | at low pressure and temperature |
| D. | at high pressure and temperature |
| Answer» C. at low pressure and temperature | |
| 39. |
Virial Equation is a ______ |
| A. | Arithmetic Progression |
| B. | Geometric Progression |
| C. | Harmonic Progression |
| D. | None of the mentioned |
| Answer» C. Harmonic Progression | |
| 40. |
Which of the following is not the equation of state? |
| A. | Van der Waals Equation |
| B. | Charles Equation |
| C. | Holborn Equation |
| D. | Peng Robinson Equation |
| Answer» C. Holborn Equation | |